我有一个类，我想在 Qvariant 中使用它，因此我需要声明和注册 Meta 类型。这就是我所做的：
class blabla: public QThread
{
Q_OBJECT
.
.
.
};
Q_DECLARE_METATYPE(blabla)
但是这段代码给了我错误：
In copy constructor ‘QThread::QThread(const QThread&)’:
instantiated from ‘void* qMetaTypeConstructHelper(const T*) [with T = blabla]’
instantiated from ‘int qRegisterMetaType(const char*, T*) [with T = blabla]’
instantiated from here
‘QObject::QObject(const QObject&)’ is private
within this context
In file included from UnitTest.cpp:16:0:
blabla.h: In copy constructor ‘blabla::blabla(const blabla&)’:
note: synthesized method ‘QThread::QThread(const QThread&)’ first required here
In file included from /usr/include/QtCore/qvariant.h:48:0,
from /usr/include/QtCore/qabstractitemmodel.h:45,
from /usr/include/QtCore/QtCore:7,
from /usr/include/QtTest/QtTest:3,
from UnitTest.h:16,
from UnitTest.cpp:14:
In function ‘void* qMetaTypeConstructHelper(const T*) [with T = blabla]’:
note: synthesized method ‘blabla::blabla(const blabla&)’ first required here
make[1]: *** [build/obj/UnitTest.o] Error 1
我想我需要注册我的met-type，但我不确定在哪里可以注册qRegisterMetaType<MyClass>("MyClass");。我尝试在元类型声明宏之后使用它，但导致错误。感谢任何将我引向正确道路的评论或提示。